Hi all. We purchased this router, the mgmt interface works, but no network interfaces have been added inside the operating system. The router is installed in a Dell PowerEdge R540 server. What could be the problem and how to fix it?

lspci | grep -i 'net'

displays only the presence of built-in adapters

04:00.0 Ethernet controller: Broadcom Limited NetXtreme BCM5720 Gigabit Ethernet PCIe
04:00.1 Ethernet controller: Broadcom Limited NetXtreme BCM5720 Gigabit Ethernet PCIe

According to the product page:

This form-factor does come with certain limitations that you should keep in mind. The CCR NIC card needs some time to boot up compared to ASIC-based setups. If the host system is up before the CCR card, it will not appear among the available devices. You should add a PCIe device initialization delay after power-up in the BIOS. Or you will need to re-initialize the PCIe devices from the HOST system.

Can you tell me how to do it in Dell R540

Can you tell me how to do it in Dell R540

If you want to do it independently from the installed OS:
Try using PXE Boot before you actual boot device in the boot sequence. Don’t forget to disable Sequence Retry. Timeout for PXE boot attempts is 30s, which should suffice for the CCR card itself to be fully booted into ROS and thus be recognisable by your own OS once booted.


It would be safer to simply reinitialize the PCIe device in your OS after boot.

This post highlights that Mikrotik _really_ need to add an option-rom to this card that delays the host servers boot process until the CCR has booted

Can you tell me how to do it in Dell R540

It would be safer to simply reinitialize the PCIe device in your OS after boot.

Can you tell me exactly how to properly re-initialize PCIe after booting. Thank you.